JP3712124B2 - Information processing apparatus, information processing method, recording medium, and program - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an information processing apparatus, an information processing method, a recording medium, and a program, and in particular, an information processing apparatus capable of recording a user's operation history with a small recording capacity without losing important information. The present invention relates to an information processing method, a recording medium, and a program.
[0002]
[Prior art]
In recent years, hard disk recorders for recording (recording) television broadcasts have been developed. Thereby, the user can record the program on a large-capacity hard disk so that the recorded program can be viewed (reproduced) at a date and time different from the actual broadcast and irrespective of the actual program organization. became.
[0003]
In addition, digitalization has progressed, and broadcasting that multiplex-transmits EPG (Electronic Program Guide) including information about programs and channels simultaneously with video and audio signals has become possible. In addition, services have been provided that allow users to view and record programs by selecting and reserving programs using this EPG.
[0004]
However, in the conventional recording / playback apparatus, when managing recorded content data, the user has to select and delete data that is not necessary by the user himself / herself.
[0005]
On the other hand, with the increase in capacity of recording media such as hard disks, it has become possible to store an enormous amount of content, so the user can grasp the contents of the enormous amount of accumulated content. The situation that it becomes impossible to occur further arises.
[0006]
As a result, it becomes difficult for the user to select unnecessary contents, and the operation of deleting unnecessary contents becomes very troublesome for the user.
[0007]
In addition, even though the user has recorded content that is of interest to the user, the content is left unviewed in a huge number of accumulated content, or is accidentally deleted before viewing. It can happen.
[0008]
Several methods are known as methods for solving such problems. One is to record a reproduction operation by binarizing it according to a reproduction speed in viewing a time shift of a TV program, record the number of reproductions repeatedly reproduced, and determine whether or not the reading has been completed to the end. Then, the degree of interest of the user for the above operation is calculated from these data, and a program that suits the user's preference is presented (for example, see Patent Document 1).
[0009]
The second is a recording / playback apparatus that holds a user's operation history and automatically records a program that the user wants to watch, and changes the operation weight according to the operation content (for example, Patent Document 2). reference).
[0010]
In addition, there is a method of collecting history data such as program audience rating by adding a program number (program ID) at the time of program transmission and determining what was not displayed after reception. (For example, refer to Patent Document 3).
[0011]
[Patent Document 1]
JP 2002-44542 A
[Patent Document 2]
Japanese Patent Laid-Open No. 2001-86420
[Patent Document 3]
JP 1999-285033
[0012]
[Problems to be solved by the invention]
However, in the conventional technique, when recording the operation history of a program, recorded on January 1, 2001, reproduced on January 10, 2001, reproduced on January 11, 2001, erased on January 15, 2001. Thus, since the information of the operation event itself is recorded as it is, there is a problem that the storage capacity of the operation history becomes enormous.
[0013]
The present invention has been made in view of such a situation, and an object thereof is to record an operation history with a small storage capacity without losing important information.
[0014]
[Means for Solving the Problems]
An information processing apparatus according to the present invention includes a content ID acquisition unit that acquires an ID of an acquired content, a detection unit that detects a transition of the state of the content, and a transition of the state of the content detected by the detection unit as a metric value It comprises conversion means for conversion, and recording means for recording the metric value converted by the conversion means together with the content ID.
[0015]
The recording means can record the operation history of the content by accumulating the metric values.
[0016]
The information processing apparatus according to the present invention may further include user ID acquisition means for acquiring the user ID, and the recording means may further record the user ID.
[0017]
The information processing method of the present invention includes a content ID acquisition step for acquiring an ID of the acquired content, a detection step for detecting a transition of the state of the content, and a transition of the state of the content detected by the processing of the detection step as a metric A conversion step of converting the value into a value; and a recording step of recording the metric value converted by the process of the conversion step together with the content ID.
[0018]
The recording medium program of the present invention includes a content ID acquisition step for acquiring the ID of the acquired content, a detection step for detecting a transition of the state of the content, and a transition of the state of the content detected by the processing of the detection step. It includes a conversion step for converting into a metric value, and a recording step for recording the metric value converted by the processing in the conversion step together with the content ID.
[0019]
The program according to the present invention includes a content ID acquisition step for acquiring an ID of the acquired content, a detection step for detecting a transition of the state of the content, and a transition of the state of the content detected by the processing of the detection step as a metric value. A conversion step for conversion and a recording step for recording the metric value converted by the processing of the conversion step together with the ID of the content are executed by a computer.
[0020]
In the present invention, the transition of the content state is converted into a metric value, and the converted metric value is recorded.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0022]
FIG. 1 is a block diagram illustrating a configuration example of the hard disk recorder 1. The hard disk recorder 1 is configured as a single device, but can be implemented as an AV device, and can be configured integrally with a television receiver such as a set top box (STB).
[0023]
Broadcast waves received by an antenna (not shown) are supplied to the tuner 11. The broadcast wave is based on a predetermined format, and may include, for example, EPG data. Broadcast waves are not particularly distinguished from satellite broadcast waves, terrestrial waves, cable, or radio.
[0024]
Based on the control of the CPU 21, the tuner 11 tunes a broadcast wave of a predetermined channel, that is, selects a channel, and outputs received data to the demodulation unit 12. It should be noted that the configuration of the tuner 11 can be changed or expanded as appropriate depending on whether the transmitted broadcast wave is analog or digital. The demodulator 12 demodulates the digitally modulated received data and outputs it to the decoder 13.
[0025]
For example, in the case of digital satellite broadcasting, the digital data received by the tuner 11 and demodulated by the demodulator 12 is a transport stream in which AV data compressed by the MPEG2 method and data broadcasting data are multiplexed. is there. AV data is video data and audio data constituting a broadcast content body, and data broadcasting data includes data (for example, EPG data) attached to the broadcast content body.
[0026]
The decoder 13 separates the transport stream supplied from the demodulator 12 into AV data and data for data broadcasting (for example, EPG data) compressed by the MPEG2 system. The separated data broadcasting data is supplied to the HDD 26 via the bus 19 and an HDD (Hard Disc Drive) interface (I / F) 25 and stored.
[0027]
When it is instructed to output the received content as it is, the decoder 13 further separates the AV data of the designated channel into compressed video data and compressed audio data. The separated audio data is PCM (Pulse Code Modulation) decoded and then output to the speaker 32 via the mixer (MIX) 15. Further, the separated video data is decompressed and then output to the display 33 via the composer 17.
[0028]
When it is instructed to record the received content on the HDD 26, the decoder 13 outputs the AV data of the elementary list of the designated channel to the HDD 26 via the bus 19 and the HDD interface 25. When the reproduction of the content recorded on the HDD 26 is instructed, the decoder 13 receives AV data input from the HDD 26 via the HDD interface 25 and the bus 19 and separates into compressed video data and compressed audio data. And output to the composer 17 or the mixer 15, respectively.
[0029]
A RAM (Random Access Memory) 14 stores these work data performed by the decoder 13.
[0030]
The composer 17 synthesizes the video data input from the decoder 13 and the image data input from the graphic processing controller 18 as necessary, and outputs them to the display 33. The display 33 displays (reproduces) the video signal supplied from the composer 17. The speaker 32 outputs the audio signal supplied from the mixer 15.
[0031]
The U / I (user interface) control unit 16 is a module that processes an input operation from a user. For example, when the user operates a remote commander 31 including operation buttons or switches, the infrared light emitting unit An operation signal (IR signal) emitted from (not shown) is received by the light receiving unit 16 a and output to the CPU 21.
[0032]
The CPU 21 is a main controller that controls the operation of the entire hard disk recorder 1 and executes various applications on a platform provided by an operating system (OS). For example, the CPU 21 controls the tuner 11, the demodulator 12, the decoder 13, the HDD 26, and the like based on the operation signal input from the remote commander 31 via the U / I controller 16 and the bus 19. Record or play back.
[0033]
Further, the CPU 21 generates a scheduling unit for each content recorded in the HDD 26 based on broadcast data such as EPG, and outputs the scheduling unit to the HDD 26 via the bus 19 and the HDD interface 25. At the same time, the scheduling unit stored in the HDD 26 is read and rewritten as necessary.
[0034]
The HDD 26 is a storage device that can store programs, data, and the like in a file format of a predetermined format and can be randomly accessed, and has a large capacity of, for example, about several tens GB (or 100 GB or more). The HDD 26 is also connected to the bus 19 via the HDD interface 25. The HDD 26 receives input of broadcast content and data broadcasting data such as EPG data from the decoder 13 or the communication control unit 20, and receives these pieces of information. In addition to recording, the recorded data is output as necessary.
[0035]
The graphic processing controller 18 is a dedicated controller that generates image data, and has a high-definition drawing function equivalent to, for example, SVGA (Super Video Graphic Array) or XGA (eXtended Graphic Array). For example, the graphic processing controller 18 generates a GUI (Graphical User Interface) operation screen that allows the user to input various settings.
[0036]
The communication control unit 20 controls wired or wireless communication using a telephone line or a cable. Broadcast content or EPG data is exchanged by communicating with a server system (not shown) via the communication control unit 20. The broadcast content input to the communication control unit 20 is input to the decoder 13 via the bus 19 and processed in the same manner as the broadcast data input via the tuner 11 and the demodulation unit 12. In addition, by communicating with an external device via the communication control unit 20, for example, it is possible to receive data related to content that does not include EPG data, such as terrestrial broadcasting. Data input to the communication control unit 20 is stored in the HDD 26 via the bus 19 and the HDD interface 25.
[0037]
A RAM (Random Access Memory) 22 is a writable volatile memory used for loading an execution program of the CPU 21 and writing work data of the execution program. A ROM (Read Only Memory) 23 is a read-only memory for storing a self-diagnosis / initialization program executed when the hard disk recorder 1 is powered on, a control code for hardware operation, and the like.
[0038]
An IEEE (Institute of Electrical and Electronics Engineers) 1394 interface (I / F) 24 is a serial high-speed interface capable of transmitting and receiving data of about several tens of MBps. An IEEE1394 video camera 34 is connected to the IEEE1394 port 24a.
[0039]
The DVD drive 35 reads data recorded on the DVD 36 and writes data to the DVD 36. Content data recorded on the HDD 26 is copied and stored in the DVD 36.
[0040]
FIG. 2 is a block diagram illustrating a configuration example of functional modules in the CPU 21 and the HDD 26 of the hard disk recorder 1.
[0041]
The input operation detection unit 50 of the CPU 21 detects an input operation by the user processed by the U / I control unit 16.
[0042]
The user ID recognition unit 51 of the CPU 21 acquires a user ID generated from the remote commander 31 operated by the user, and recognizes who the user is based on the acquired user ID.
[0043]
The state transition detection unit 52 of the CPU 21 detects the transition of the content state based on the input operation detected by the input operation detection unit 50.
[0044]
The metric value setting unit 53 of the CPU 21 sets a reference value as a metric value for each transition of the content state accompanying the operation of the remote commander 31 by the user. A metric value setting method by the metric value setting unit 53 will be described later with reference to FIG.
[0045]
The metric value conversion unit 54 of the CPU 21 uses the state transition set by the metric value setting unit 53 and the metric value reference value correspondence table as a metric value for the state transition of the content detected by the state transition detection unit 52. Convert to
[0046]
The display control unit 55 of the CPU 21 determines whether the display of the metric value is instructed by the user based on the input from the input operation unit 50. If specified, the display control unit 55 is recorded in the content operation history database unit 61. The metric value is read and displayed on the display 33.
[0047]
The content operation history database unit 61 of the HDD 26 accumulates and records the metric values converted by the metric value conversion unit 54.
[0048]
Next, the operation of content management processing will be described with reference to FIG.
[0049]
In step S <b> 1, the input operation detection unit 50 determines whether or not there is an input operation by the user from the remote commander 31. If there is no input operation by the user, it waits until there is an input operation. If there is an input operation, the input operation detection unit 50 outputs a received signal to the user ID recognition unit 51 and the state transition detection unit 52.
[0050]
In step S2, the user ID recognition unit 51 recognizes the user ID from the received signal. That is, the remote commander 31 is assigned to each user. When operated, the remote commander 31 adds its own (user) ID and outputs a signal corresponding to the operation, so that the ID is recognized. In addition, when the log | history for every user is not required (for example, when the log | history of a family unit is sufficient), you may abbreviate | omit this user ID recognition process.
[0051]
In step S3, the state transition detection unit 52 determines whether or not the input operation by the user is selection of content. If the input operation by the user is content selection, the process proceeds to step S8. If the input operation by the user is not content selection, the process proceeds to step S4.
[0052]
In step S <b> 4, the state transition detection unit 52 determines whether or not the input operation by the user is a recording reservation of content to the HDD 26. If the input operation by the user is a recording reservation of content to the HDD 26, the process proceeds to step S8. If the input operation by the user is not a recording reservation of the content to the HDD 26, the process proceeds to step S5.
[0053]
In step S <b> 5, the state transition detection unit 52 determines whether or not the input operation by the user is a recording reservation for the content DVD 36. If the input operation by the user is a recording reservation of the content to the DVD 36, the process proceeds to step S8. If the input operation by the user is not a recording reservation of the content on the DVD 36, the process proceeds to step S6.
[0054]
In step S6, the state transition detection unit 52 determines whether or not the input operation by the user is the reproduction of the content. If the input operation by the user is content playback, the process proceeds to step S8. If the input operation by the user is not content reproduction, the process proceeds to step S7.
[0055]
In step S7, the state transition detection unit 52 determines whether or not the input operation by the user is discarding of the content. If the input operation by the user is discarding of the content, the process proceeds to step S8.
[0056]
In step S8, the state transition detection unit 52 outputs the recognition result for the input operation recognized in the processing of steps S3 to S7 to the metric value conversion unit 54, and sets the ID of the content that is currently processed as the EPG. Get from data. The EPG data is acquired in advance from the server system by the communication control unit 20 and recorded in the HDD 26.
[0057]
In step S <b> 9, the metric value conversion unit 54 converts the recognition result recognized by the state transition detection unit 52 into a metric value based on the reference value preset by the metric value setting unit 53. Details thereof will be described later with reference to FIG. When the metric value has already been calculated for the same content, the metric value conversion unit 54 accumulates the metric value and outputs the metric value to the content operation history database unit 61.
[0058]
In step S 10, the content operation history database unit 61 records the metric value converted by the metric value conversion unit 54. That is, the operation history of the content by the user is recorded as a cumulative value of the metric value.
[0059]
In step S11, the display control unit 55 determines whether or not to display the operation history of the content based on an instruction from the user. When displaying the content operation history, the process proceeds to step S12. If the content operation history is not displayed, the process returns to step S1.
[0060]
In step S <b> 12, the display control unit 55 reads the content operation history from the content operation history database unit 61 and causes the display 33 to display the content operation history. Thereafter, the process returns to step S1, and the subsequent processes are repeated.
[0061]
Next, a method for setting a metric value reference value by the metric value setting unit 53 will be described with reference to FIG. The user sets a reference value described below in advance before executing the processing shown in FIG. This reference value can be changed by the user as needed.
[0062]
When the input operation is “content selection” 71, the reference value of the metric value at this time is set to “0”, for example. The content state can transition from this state to three states. The states of the three contents are “recording reservation to HDD” 72, “recording reservation to DVD” 73, or “discard” 75. Here, “recording reservation to HDD” 72 refers to a transition state in which recording reservation to HDD 26 is made, and then recording is actually performed on HDD 26. “Recording reservation to DVD” 73 refers to a transition state in which recording reservation to DVD 36 is made, and then recording is actually performed on DVD 36. The meaning of “discard” 75 will be described later with reference to FIG.
[0063]
The reference value of the metric value corresponding to the transition from the “content selection” 71 state to the “recording reservation to HDD” 72 is, for example, “2”. The reference value of the metric value corresponding to the transition from the “content selection” 71 state to “DVD recording reservation” 73 or the “content selection” 71 state to “discard” 75 is, for example, It is set to “3” or “0”, respectively.
[0064]
It is assumed that the content state has transitioned from the “content selection” 71 state to the “recording reservation to HDD” 72. The content state can transition from this state to three states. The states of the three contents are “recording reservation to DVD” 73, “play” 74, or “discard” 75.
[0065]
The reference value of the metric value corresponding to the transition from the “recording reservation to HDD” 72 to the “recording reservation to DVD” 73 is, for example, “3”. The reference value of the metric value corresponding to the transition from the “recording reservation to HDD” 72 to the “play” 74 or the transition from the “recording reservation to HDD” 72 to the “discard” 75 is, for example, It is set to “2” or “−2”, respectively.
[0066]
Furthermore, it is assumed that the state of the content transitions from the state of “content selection” 71 to “recording reservation to DVD” 73. The content state can transition from this state to two states. The status of the two contents is “play” 74 or “discard” 75.
[0067]
The reference value of the metric value corresponding to the transition from the “DVD recording reservation” 73 state to the “playback” 74 is, for example, “2”. The reference value of the metric value corresponding to the transition from the “DVD recording reservation” 73 state to the “discard” 75 is, for example, “−3”.
[0068]
It is assumed that the content state has changed from “Reservation for recording to HDD” 72 or “Reservation for recording to DVD” 73 to “Reproduction” 74. The content state can transition from this state to two states. The status of the two contents is “play” 74 or “discard” 75.
[0069]
The reference value of the metric value corresponding to the transition from the state of “reproduction” 74 to “reproduction” 74 is, for example, “2”. The reference value of the metric value corresponding to the transition from the state of “reproduction” 74 to “discard” 75 is, for example, “0”.
[0070]
As described above, the metric value setting unit 53 sets a metric value reference value composed of an arbitrary integer value in response to a user input operation corresponding to a content state and its transition.
[0071]
In step S9 of FIG. 3 described above, the metric value conversion unit 54 reads the reference value corresponding to the state transition detected by the state transition detection unit 52 from the metric value setting unit 53 and outputs the reference value. For example, when the selected content is reserved for recording in the HDD 26, the metric value is output as “2”, and when the content recorded in the HDD 26 is reserved for recording in the DVD 36, the metric value is output as “3”. .
[0072]
FIG. 5 shows an example of the change in the metric value that changes with the change in the state of the content as described above. In this example, when the content is finally reserved for recording in the HDD 26, the cumulative value of the metric value is an even number, and when the content is reserved for recording in the DVD 36, the cumulative value of the metric value is an odd number. A reference value is set.
[0073]
When the content is finally reserved for recording in the HDD 26, for example, there are two transition patterns of line A and line B in FIG. The feature is that the metric value accumulated corresponding to the transition is finally an even number. In the case of row A, the state of the content changes from “content selection” 71 to “recording reservation to HDD 26” 72 and “discard” 75. At this time, the cumulative value of the metric value corresponding to the transition of the state of these contents changes to “0”, “2”, and “0”.
[0074]
Similarly, in the case of row B, there are five content states: “content selection” 71 to “recording reservation to HDD” 72, “play” 74, “play” 74, and “play” 74. The content state is transitioned. At this time, the cumulative value of the metric value corresponding to the transition of the state of these contents changes to “0”, “2”, “4”, “6”, “8”.
[0075]
Next, when the content is finally reserved for recording on the DVD 36, for example, there are two transition patterns of the C line and the D line in FIG. The feature is that the metric value accumulated corresponding to the transition is finally odd. In the case of row C, the content status is “content selection” 71 to “DVD recording reservation” 73, “play” 74, “play” 74, and “play” 74. Is transitioning. At this time, the cumulative value of the metric value corresponding to the transition of the state of these contents changes to “0”, “3”, “5”, “7”, “9”.
[0076]
Similarly, in the case of row D, the content status changes from “content selection” 71 to “recording reservation to HDD” 72, “playback” 74, “recording reservation to DVD” 73, and “playback” 74. And the states of the five contents are transited. At this time, the cumulative value of the metric value corresponding to the transition of the state of these contents changes to “0”, “2”, “4”, “7”, “9”.
[0077]
In this way, the cumulative value of the metric value is an even number (when the content is recorded on the HDD 26) or an odd number (when the content is recorded on the DVD 36). The recording position of the content can be found.
[0078]
Next, with reference to FIG. 6, “discard” 75, which is one of the content states in FIG. 4, will be described. In FIG. 4, there are five routes for transitioning to the content state of “discard” 75.
[0079]
The first route is when the “content selection” 71 is canceled when the content state is “content selection” 71. The second route is when the “recording reservation” 81 is canceled when the content state transitions from “content selection” 71 to “recording reservation” 81. Here, “recording reservation” 81 refers to the recording reservation state of “recording reservation to HDD” 72 or “recording reservation to DVD” 73 in FIG. 4, and there may be two content states.
[0080]
The third route is when the “recording” 82 is deleted when the state of the content transitions from “recording reservation” 81 to “recording” 82. Here, “recording” 82 refers to the respective recording states after the recording reservation of “recording reservation to HDD” 72 or “recording reservation to DVD” 73 in FIG. 4, and there may be two content states. . The fourth route is when the “playback” 74 is erased when the content state transitions from the “recording” 82 to the “playback” 74. The fifth is when “recording to DVD (save)” 83 is erased when the state of content changes from “playback” 74 to “recording to DVD (save)” 83. Here, “recording (storing) to DVD” 83 refers to the recording and saving state to the DVD 36 after the recording reservation of “recording reservation to DVD” 73 in FIG.
[0081]
As described above, the states of these five contents are all the contents of “discard” 75 in FIG. However, the reference value of the metric value corresponding to the content state transition varies depending on the type of user input operation. For example, the cancellation of “recording reservation” 81 cancels the recording reservation state of “recording reservation to HDD” 72 or “recording reservation to DVD” 73, and therefore the metric value reference corresponding to the transition The value is “−2” or “−3”, and the cumulative value of the metric value is subtracted.
[0082]
Since the “recording” 82 is canceled because the recording state after the recording reservation of “recording reservation to HDD” 72 or “recording reservation to DVD” 73 is canceled, the reference value of the metric value corresponding to the transition Is set to “−2” or “−3”, and the cumulative value of the metric value is subtracted.
[0083]
Further, when the “recording to DVD (save)” 83 is canceled, the respective recording states after the recording reservation of “recording recording to DVD” 73 are canceled, and the reference value of the metric value corresponding to the transition Is set to “−3”, and the accumulated metric value is subtracted. The metric value corresponding to the other “discard” 75 transition is set to 0.
[0084]
FIG. 7 shows an example of the data structure of the operation history recorded in the content operation history database unit 61 by the metric value conversion unit 54.
[0085]
“Vers.” 91 indicates that the number of operations performed by the user regarding the content is selected, and is detected by the state transition detection unit 52. “User ID” 92 is an ID number for identifying a user, and is recognized by the user ID recognition unit 51. The “content ID” 93 is detected by the state transition detection unit 52.
[0086]
“Initial selection date and time” 94 indicates the date and time when the user first selected content, and is detected by the state transition detection unit 52. “Latest state transition date and time” 95 indicates the latest date and time when the content state has transitioned, and is detected by the state transition detection unit 52. The “state number” 96 is the state number of the content state (for example, “Recording to HDD” 72 in FIG. 4), and is detected by the state transition detection unit 52. The “cumulative metric value” 97 indicates the cumulative value of the metric value accompanying the transition of the content state, and is calculated by the metric value conversion unit 54.
[0087]
FIG. 8 shows another example of the data structure of the operation history. In this example, a “selection method” 111 and a “genre name” 112 are added to the data structure of the operation history in FIG. In order to add the depth of the relationship with respect to the specific operation of the user as information, the metric value setting unit 53 sets the depth of the relationship between the operation and the user as the metric value, and digitizes and records it. belongs to.
[0088]
The “selection method” 111 describes, for example, a method of selecting the content, such as search, EPG content table, content navigation, and content recommendation comment. The “genre name” 112 describes the genre name when the content is searched.
[0089]
As described above, the depth of the relationship with respect to the specific operation of the user can be added as more detailed information to the data structure of the operation history.
[0090]
The data structure of these operation histories is appropriately read and analyzed by an application that analyzes user preferences. On the basis of the analysis result, for example, content that meets the user's preference is automatically recorded thereafter.
[0091]
In the above description, the content is acquired by the tuner 11. However, the present invention can be applied to the case of acquiring content distributed via the Internet or other networks. Further, although the case where the present invention is applied to a hard disk recorder has been described as an example, the present invention can be applied to an information processing apparatus other than a hard disk recorder.
[0092]
The series of processes described above can be executed by hardware or can be executed by software. When a series of processing is executed by software, a program constituting the software executes various functions by installing a computer incorporated in dedicated hardware or various programs. For example, the program is installed in a general-purpose personal computer from the program storage medium.
[0093]
FIG. 9 shows an example of the configuration of a personal computer that executes such processing. In FIG. 9, the CPU 131 executes various processes according to a program stored in the ROM 132 or a program loaded from the storage unit 138 to the RAM 133. The RAM 133 also appropriately stores data necessary for the CPU 131 to execute various processes.
[0094]
The CPU 131, ROM 132, and RAM 133 are connected to each other via a bus 134. An input / output interface 135 is also connected to the bus 134.
[0095]
The input / output interface 135 includes an input unit 136 including a keyboard and a mouse, a display including a CRT and an LCD, an output unit 137 including a speaker, a storage unit 138 including a hard disk, a modem, a terminal adapter, and the like. A configured communication unit 139 is connected. The communication unit 139 performs communication processing via a network including the Internet (not shown) and communication processing with a corresponding broadcast receiving / recording apparatus (not shown).
[0096]
A drive 140 is connected to the input / output interface 135 as necessary, and a magnetic disk 151, an optical disk 152, a magneto-optical disk 153, a semiconductor memory 154, or the like is appropriately mounted, and a computer program read from these is loaded. It is installed in the storage unit 138 as necessary.
[0097]
As shown in FIG. 9, a program storage medium for storing a program installed in a computer and ready to be executed by the computer includes a magnetic disk 151 (including a floppy disk), an optical disk 152 (CD-ROM (Compact Disk- Read only memory), DVD (including digital versatile disk), magneto-optical disk 153 (including MD (mini-disk)), or package media including semiconductor memory 154, or programs temporarily or permanently A ROM 132 to be stored and a hard disk constituting the storage unit 138 are configured. The program is stored in the program storage medium using a wired or wireless communication medium such as a local area network, the Internet, or digital satellite broadcasting via an interface such as a router or a modem as necessary.
[0098]
In the present specification, the step of describing the program stored in the program storage medium is not limited to the processing performed in time series according to the described order, but is not necessarily performed in time series. Or the process performed separately is also included.
[0099]
【The invention's effect】
As described above, according to the present invention, an operation history can be accumulated. In particular, the capacity can be reduced. In addition, the scale of the apparatus can be reduced and the increase in cost can be suppressed.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a hardware configuration of a hard disk recorder.
2 is a block diagram showing a configuration of hardware functional modules of the hard disk recorder of FIG. 1; FIG.
FIG. 3 is a flowchart illustrating content management processing.
FIG. 4 illustrates a method for setting a metric value for a state transition corresponding to an operation.
FIG. 5 is a diagram illustrating a correspondence relationship between a content state and a metric value.
FIG. 6 is a diagram for explaining disposal of content.
FIG. 7 is a diagram illustrating an example of a data structure of an operation history.
FIG. 8 is a diagram showing another example of the data structure of the operation history.
FIG. 9 is a block diagram illustrating a configuration of a personal computer.
[Explanation of symbols]
1 hard disk recorder, 21 CPU, 26 HDD, 36 DVD, 50 input operation detection unit, 51 user ID recognition unit, 52 state transition detection unit, 53 metric value setting unit, 54 metric value conversion unit, 55 display control unit, 61 contents Operation history database section

Claims (6)

Content ID acquisition means for acquiring the ID of the acquired content;
Detecting means for detecting a transition of the content state;
Conversion means for converting a transition of the state of the content detected by the detection means into a metric value;
An information processing apparatus comprising: a recording unit that records the metric value converted by the conversion unit together with an ID of the content. The information processing apparatus according to claim 1, wherein the recording unit records an operation history of the content by accumulating the metric values. It further comprises user ID acquisition means for acquiring the user ID,
The information processing apparatus according to claim 1, wherein the recording unit further records an ID of the user. In an information processing method of an information processing apparatus for playing back recorded content,
A content ID acquisition step of acquiring the ID of the acquired content;
A detection step of detecting a transition of the content state;
A conversion step of converting the state transition of the content detected by the processing of the detection step into a metric value;
And a recording step of recording the metric value converted by the conversion step together with the ID of the content. A program for playing back recorded content,
A content ID acquisition step of acquiring the ID of the acquired content;
A detection step of detecting a transition of the content state;
A conversion step of converting the state transition of the content detected by the processing of the detection step into a metric value;
And a recording step of recording the metric value converted by the processing of the conversion step together with the ID of the content. A program for playing back recorded content,
A content ID acquisition step of acquiring the ID of the acquired content;
A detection step of detecting a transition of the content state;
A conversion step of converting the state transition of the content detected by the processing of the detection step into a metric value;
And a recording step of recording the metric value converted by the conversion step together with an ID of the content.

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